Porto Cervo, Summer 2026. The Season Started Differently.
The Marina di Porto Cervo has 700 berths and capacity for yachts up to 160 metres. In any given summer week, the vessels moored at its pontoons represent a combined value that few marinas in the Mediterranean can match — superyachts belonging to investors, industrialists, family offices, and private individuals from across Europe, the Middle East, and the Americas.
In May 2026, before the main season began, something unusual happened in the marinas of Sardinia. The Guardia di Finanza’s Naval Operations Unit based in Cagliari completed an operation — codenamed “Red Jack” — that had been running quietly since 2025. What started as a routine maritime patrol turned into one of the most significant fiscal enforcement actions ever conducted in the Italian recreational boating sector.
The result: 100 vessels identified flying foreign flags in Sardinian ports, all of them traceable to individuals tax-resident in Italy, none of them declared to the tax authority. Combined market value: more than €48 million. Potential administrative fines: up to €23 million.
The ports targeted were the ones you know. Porto Cervo. Porto Rotondo. Poltu Quatu. Cannigione. The Maddalena Archipelago. The marinas where the same owners who hold villas in Arzachena and Baja Sardinia leave their vessels at the end of a day on the water.
What “Flagging Out” Looks Like in Practice — and Why It Became a Problem
Flagging out — registering a vessel in a foreign maritime registry while the owner remains fiscally resident in Italy — became widespread in Italian recreational boating for reasons that had little to do with tax evasion in the traditional sense. Polish registries, Maltese flags, Belgian classifications: they offered simpler administrative procedures, lower ongoing costs, faster registration timelines. Many owners who took this route did so on professional advice, as part of a broader structure designed to manage their assets efficiently.
The problem, as the Guardia di Finanza stated publicly, is that the practice “is frequently instrumentalised to evade transparency obligations toward the tax authority”. For Italian tax residents, any registered movable property held abroad — including vessels registered in a foreign maritime registry — must be declared in the Quadro RW section of the annual income tax return. This is a monitoring obligation, not an income declaration. It concerns what you own, not what you earn from it.
Failing to file that declaration is a violation in itself — and the penalty is proportionate to the asset’s value, not to any unpaid tax. On a vessel worth €800,000, the base penalty alone can be significant before any further fiscal consequences are considered.
The Marinas That Were Targeted
The investigators did not arrive randomly. Operation Red Jack was built on a systematic “reconnaissance of Sardinian ports,” according to the official Guardia di Finanza communications. The choice of geography reflects the reality of where Italian-owned, foreign-flagged vessels concentrate during the season.
Porto Cervo is the most prominent — the Marina di Porto Cervo, home to the Yacht Club Costa Smeralda and host of regattas that bring vessels from across the world each summer, including the 2026 Giorgio Armani Superyacht Regatta. But the sweep extended across the full arc of northern Sardinia’s premium berthing locations:
- Poltu Quatu Marina, with over 300 berths accommodating vessels up to 50 metres, nestled inside one of northern Sardinia’s most sheltered inlets
- Porto Rotondo, home to the Yacht Club Porto Rotondo and one of the principal stops on the Fiera Nautica di Sardegna circuit
- Cannigione, the quieter marina that serves as a base for vessels using the Maddalena Archipelago
- Cala di Volpe and the anchorages off Romazzino and Liscia di Vacca — favoured by superyachts whose owners prefer not to berth in a full marina.
The vessels identified were spread across all of these locations. Not one marina, not one port — the entire northern Sardinian coastline.
The Profile That Attracted Attention
The investigation did not target a single nationality or a single type of ownership. What unified the 100 vessels identified was a combination of factors: a foreign flag, Italian beneficial ownership, and the absence of a corresponding declaration in the owner’s Italian tax filings.
In northern Sardinia, that combination appears with a frequency that is higher than almost anywhere else in the country, for a structural reason: the same HNWI profile that gravitates toward luxury real estate in Arzachena and Porto Cervo also gravitates toward vessel ownership. The two asset classes — villa and yacht — are frequently held by the same person, often through connected or parallel structures. A Sardinian summer, for this profile, means both a property and a vessel.
When investigators reconstructed ownership chains across tax databases, the connections between undeclared vessels and existing property holdings became visible. The cross-referencing capability that made Operation Red Jack possible is the same capability that makes the broader fiscal position of a Costa Smeralda HNWI — villa, yacht, company structure — worth reviewing as a single unit rather than in isolation.
The Questions That Operation Red Jack Raises for Current Owners
The 100 vessels identified in Operation Red Jack are not the totality of the problem — they are a sample from a single investigation cycle conducted in Sardinian ports between 2025 and 2026. The Guardia di Finanza stated explicitly that the reconstruction “assumed vast proportions in relation to the fiscal residency of the various vessel owners, distributed across the entire national territory”. Further operations, in Sardinia and elsewhere, follow as a matter of course.
For owners of foreign-flagged vessels currently berthed or regularly used in Costa Smeralda waters, the questions that matter are straightforward, even if the answers require careful analysis:
Has the vessel been declared correctly in every relevant tax return? The Quadro RW obligation applies year by year. A declaration filed correctly last year but omitted in a prior year does not eliminate the earlier exposure — it simply creates a partial compliance picture that a verification can unpick.
Is the vessel held through a structure that creates its own fiscal obligations? A Maltese SPV, a BVI limited company, a trust: each of these wraps raises its own questions about transparency, beneficial ownership disclosure, and the interaction between the vehicle’s position abroad and the owner’s Italian fiscal status. The same substance-over-form analysis that applies to companies holding luxury villas in Costa Smeralda applies equally to companies holding vessels.
Is the vessel used commercially from Sardinian ports? Charter operations departing from Porto Cervo or Poltu Quatu have their own VAT and licensing implications under Italian law — implications that are distinct from, and in addition to, the Quadro RW monitoring obligations. An owner who manages summer charters informally, without appropriate documentation, faces a different exposure profile than one who holds the vessel for purely private use.
Does the Art. 26-ter certification apply? Italy’s new Legge Mare 2026 (Law No. 70/2026) introduced new certification obligations for foreign-flagged vessels owned by Italian residents, in force since May 2026. For vessels up to 24 metres moored regularly in Sardinian marinas, obtaining the correct attestation is now a legal obligation — and the process of obtaining it creates its own documentary interactions with the owner’s broader legal and fiscal position.
What Careful Owners in Costa Smeralda Do Differently
The owners and advisors who navigate this landscape without incident share a consistent characteristic: they treat the vessel as part of a complete picture, not as a standalone asset managed by a separate specialist.
In Costa Smeralda, where a villa in Arzachena, a berth in Porto Cervo, and a company registered in a low-tax jurisdiction may all belong to the same individual, the legal and fiscal threads run together. A review that examines all of them — vessel registration, Quadro RW compliance, ownership structure, any real estate holdings, and the interaction between these elements — produces a different outcome than a review that examines each in isolation.
That kind of review is a contained piece of work. It does not require litigation, restructuring, or disclosure of anything that does not already need to be disclosed. What it requires is someone with direct familiarity with the legal landscape of northern Sardinia and the experience to know what the Guardia di Finanza looks for — and where the room to manoeuvre exists, before any formal process begins.
Contact
Govoni Law works with international owners and their advisors on the legal aspects of holding vessels and real estate in Sardinia.
All work is in writing, in English.
contact@govonilaw.com
FAQ Section
Q: What was Operation Red Jack in Sardinia?
A: Operation Red Jack was a fiscal enforcement operation conducted by the Guardia di Finanza Naval Unit in Cagliari, concluded in May 2026. It identified 100 foreign-flagged vessels in Sardinian ports — including Porto Cervo, Porto Rotondo, and Poltu Quatu — belonging to Italian tax residents who had not declared the vessels in their income tax returns. Total vessel value exceeded €48 million; potential fines could reach €23 million.
Q: Does a foreign-flagged yacht moored in Porto Cervo need to be declared to Italian tax authorities?
A: Yes, if the owner is tax-resident in Italy. Italian fiscal monitoring rules require declaration of all foreign-registered movable property — including vessels — in the Quadro RW section of the annual income tax return. The obligation applies regardless of where the vessel is physically located or registered, and failure to comply results in penalties proportionate to the vessel’s value.
Q: Which Sardinian marinas were covered by Operation Red Jack?
A: The operation covered the main marina locations of northern Sardinia, including Porto Cervo, Porto Rotondo, Poltu Quatu, Cannigione, and the Maddalena Archipelago. The Guardia di Finanza conducted systematic reconnaissance across Sardinian ports throughout 2025–2026.
Q: If a yacht is held through a foreign company, does the owner still have disclosure obligations in Sardinia / Italy?
A: Yes. Italian regulatory practice applies substance-over-form analysis: the effective beneficial owner’s obligations are not extinguished by holding the vessel through a Maltese, BVI, or other foreign company. This approach was confirmed in 2026 Revenue Agency rulings and is consistent with the methodology used in Operation Red Jack.
Q: Is there a new Italian law in 2026 affecting foreign-flagged yachts in Sardinian waters?
A: Yes. Law No. 70/2026 (the Legge Mare) introduced Article 26-ter of Italy’s Pleasure Craft Code, which entered into force on 10 May 2026. It requires vessels up to 24 metres flying foreign flags and owned by Italian residents to carry certification of fitness for navigation. This applies to all Sardinian marinas.
Q: What does a structured legal review of a yacht ownership position in Costa Smeralda cover?
A: A complete review examines flag registration and Quadro RW compliance, the ownership structure (direct or through a corporate vehicle), any charter activity and its VAT implications, the new Art. 26-ter certification obligations, and the interaction between the vessel and any Italian real estate holdings. The goal is to identify any open issues before a formal verification begins.
Internal Linking Suggestions
- → Italy’s New Law on Foreign-Flagged Yachts: Art. 26-ter Explained — the legislative context behind the new certification obligations
- → Shell Company, Luxury Villa in Costa Smeralda & Italian Tax Audit — when the same ownership profile involves both real estate and a vessel
- → First Home vs Second Home in Sardinia: Taxes, Residency Rules and Common Misunderstandings